<?php
/**
 * 获取关键字接口
 */
defined('IN_PHPCMS') or exit('No permission resources.');

define('API_URL_GET_KEYWORDS', 'http://tool.phpcms.cn/api/get_keywords.php');

$number = intval($_GET['number']);
$data = $_POST['data'];
echo get_keywords($data, $number);

function get_keywords($data, $number = 3)
{
    $data = trim(strip_tags($data));
    if (empty($data))
        return '';
    $http = pc_base::load_sys_class('http');
    if (CHARSET != 'utf-8') {
        $data = iconv('utf-8', CHARSET, $data);
    } else {
        $data = iconv('utf-8', 'gbk', $data);
    }
    $http->post(API_URL_GET_KEYWORDS, array(
        'siteurl' => SITE_URL,
        'charset' => CHARSET,
        'data' => $data,
        'number' => $number
    ));
    if ($http->is_ok()) {
        if (CHARSET != 'utf-8') {
            return $http->get_data();
        } else {
            return iconv('gbk', 'utf-8', $http->get_data());
        }
    }
    return '';
}
?>